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Bank Clerk :: CN Test 207
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1 .

The mean of 50 observations was 36. It was found later than an observation 48 was wrongly taken as 23. The corrected (New) means is 

A.    35.2 B.    36.1
C.    36.5 D.    39.1
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2 .

The value of √5+√11+√19+√29+√49 is 

A.    3 B.    9
C.    7 D.    5
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3 .

Simplify 1 + 1/2/1 - 1/2 ÷ 4/7 (2/3 + 3/10) of 1/2/1/2 + 1/3/1/3

A.    2/3 B.    37 1/2
C.    3/2 D.    18 3/8
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4 .

√3√0.004096 is equal to 

A.    4 B.    0.4
C.    0.04 D.    0.004
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5 .

The average salary of all the workers in a workshop is Rs. 8000. The average salary of 7 technicians is Rs. 12000 and the average salary of the rest is Rs. 6000. The total number of workers in the workshop is 

A.    20 B.    21
C.    23 D.    22
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6 .

A trader's marked price is 30% above the cost price and gives 1 articles free for buying every 15 articles and thus gains 35%. The marked price in increased above the cost price by

A.    40% B.    39%
C.    50% D.    20%
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7 .

A trader's marked price is 30% above the cost pirce. He allows his customers 10% discount on the marked price. What profit does he make ?

A.    17% B.    18%
C.    16% D.    19%
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8 .

A can do a piece of work in 60 days. He worker for 15 days and then B alone finishes the remaining work in 30 days. The two together can finish the work in

A.    24 days B.    25 days
C.    30 days D.    32 days
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9 .

A shopkeeper sells his goods at 10% discount on the marked price. What price should he mark on an article that costs him Rs. 900 to gain 10% ?

A.    Rs.1275 B.    Rs.1205
C.    Rs.1175 D.    Rs.1100
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10 .

A wall of 100 metres can be built by 7 men or 10 women in 10 days. How many days will 14 men and 20 women take to build a wall of 600 metres ?

A.    15 B.    20
C.    25 D.    30
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